Gibalo, I. B. (1970). Analytical chemistry of Niobium and tantalum. tr. by I M Gibalo. Ann Arbor-Humphrey science.
Dyfyniad Arddull ChicagoGibalo, I B. Analytical Chemistry of Niobium and Tantalum. Tr. by I M Gibalo. London: Ann Arbor-Humphrey science, 1970.
Dyfyniad MLAGibalo, I B. Analytical Chemistry of Niobium and Tantalum. Tr. by I M Gibalo. Ann Arbor-Humphrey science, 1970.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.